2xy - 10x - 5y bằng -15

To solve the equation 2xy - 10x - 5y = -15, we can rearrange the terms to get:

2xy - 10x - 5y + 15 = 0

Now, let's factor the equation by grouping:

(2xy - 10x) - (5y - 15) = 0

2x(y - 5) - 5(y - 3) = 0

Now, we can factor out the common factors:

2x(y - 5) - 5(y - 3) = 0

2x(y - 5) - 5(y - 3) = 0

2x(y - 5) - 5(y - 3) = 0

Now, we can set each factor equal to zero and solve for x and y:

2x = 0 or y - 5 = 0

x = 0 or y = 5

y - 3 = 0

y = 3

Therefore, the solution to the equation 2xy - 10x - 5y = -15 is x = 0 and y = 3.